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Nearly two-thirds of new homes that completed construction in 2019 included two-car garages, according to a National Association of Home Builders (NAHB) analysis of 2018 Census Bureau Survey of Construction data. Most geographic regions displayed a preference for two-car garages. The West North Central census division—containing North Dakota, South Dakota, Minnesota, Nebraska, Kansas, Missouri, and Iowa—was the only region to have three-car garages associated with more completed homes than two-car garages, according to the NAHB's Eye on Housing blog.

The South Atlantic division had the highest share of two-car garages with 71%. One-car garages were most popular in the Middle Atlantic division (25%), while “other” which includes carport, off-street parking, and other parking facilities was the largest share in New England (23%).

The 2018 data indicates that as the size of the completed home increases, the share of one-car garage or other declines. “Other” includes carport, off-street parking (including a driveway with no garage or carport), and other parking facilities. At the same time, the share of completed homes with two or more garages increased as the square footage of the house increased.

The smaller the size of the house, the larger the share of one-car or other parking facilities. The “other” category is the largest share of homes with less than 1,200 square feet at 61%. As the square footage of the home increases, the share of homes with “other” parking options declines. Only 2% of homes larger than 5,000 square feet have "other" parking options. The percentage of completed homes with a one-car garage is 18% for homes between 1,200-1,599 square feet, the highest share in its category. The proportion of completed homes with a one-car garage is the lowest for homes larger than 5,000 square feet.

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